Best time to visit Ascension
The best time to visit Ascension is June–December, judged on twenty years of weather records and the events worth going for.
Ascension, Ascension, Saint Helena
°C
mm
- Average daily high and low
- Precipitation
- Good month
- Best month
- Made good or best by an event
| Month | Average daily high | Average daily low | Precipitation | Verdict |
|---|---|---|---|---|
| January | 25.5 °C / 78 °F | 24.7 °C / 76 °F | 2 mm / 0.1 in | good month |
| February | 26.5 °C / 80 °F | 25.7 °C / 78 °F | 6 mm / 0.2 in | good month |
| March | 27.2 °C / 81 °F | 26.3 °C / 79 °F | 16 mm / 0.6 in | good month |
| April | 27.3 °C / 81 °F | 26.4 °C / 80 °F | 18 mm / 0.7 in | good month |
| May | 26.8 °C / 80 °F | 26 °C / 79 °F | 9 mm / 0.4 in | good month |
| June | 25.9 °C / 79 °F | 25 °C / 77 °F | 9 mm / 0.3 in | best month |
| July | 24.9 °C / 77 °F | 24.1 °C / 75 °F | 9 mm / 0.4 in | best month |
| August | 24.1 °C / 75 °F | 23.3 °C / 74 °F | 5 mm / 0.2 in | best month |
| September | 23.7 °C / 75 °F | 23 °C / 73 °F | 3 mm / 0.1 in | best month |
| October | 23.8 °C / 75 °F | 23.1 °C / 74 °F | 2 mm / 0.1 in | best month |
| November | 24.1 °C / 75 °F | 23.4 °C / 74 °F | 1 mm / 0 in | best month |
| December | 24.7 °C / 76 °F | 24 °C / 75 °F | 2 mm / 0.1 in | best month |
Good and best months depend on more than temperature, rain and events. How they are chosen
Each activity on this page has its own good and best months, rated on twenty years of daily weather records. Which measures count, and how much, depends on the activity: humidity for exploring outdoors, wind for the beach, hiking and skiing, snow for skiing alone. Between them, the activities are rated on:
- Daytime highs
- Night-time lows
- How warm it feels
- Humidity
- How much of the day is sunny
- Hours of daylight
- Monthly rainfall
- How many days it rains
- Days of heavy rain
- Wind
- Snowfall and days with snow
- Major events, such as festivals
The chart shows the good and best months for exploring outdoors.
The event icon marks a month that an event lifts to good or best, such as a festival or a natural spectacle. Choose “Weather only” in the toolbar to rate the months on weather alone.
Best months by activity
Exploring outdoors
Mild days and nights, mostly dry and bright. The default for 'when should I go'.
- JJanuary: good
- FFebruary: good
- MMarch: good
- AApril: good
- MMay: good
- JJune: best
- JJuly: best
- AAugust: best
- SSeptember: best
- OOctober: best
- NNovember: best
- DDecember: best
- Best
- June–December
- Good
- January–May
Why these months
January · good
In its favour: feels like (high) 27.9 °C / 82 °F, average daily high 25.5 °C / 78 °F, precipitation 2 mm / 0.1 in, share of daylight that is sunny 95%, wet days 0.8 days, days with heavy rain 0 days.
Against: average daily low 24.7 °C / 76 °F, relative humidity 78%.
February · good
In its favour: precipitation 6 mm / 0.2 in, share of daylight that is sunny 96%, feels like (high) 29.4 °C / 85 °F, average daily high 26.5 °C / 80 °F, wet days 1.9 days, days with heavy rain 0 days.
Against: average daily low 25.7 °C / 78 °F, relative humidity 78%.
March · good
In its favour: precipitation 16 mm / 0.6 in, share of daylight that is sunny 97%, average daily high 27.2 °C / 81 °F, feels like (high) 30.2 °C / 86 °F, wet days 3.9 days, days with heavy rain 0.2 days.
Against: average daily low 26.3 °C / 79 °F, relative humidity 77%.
April · good
In its favour: precipitation 18 mm / 0.7 in, share of daylight that is sunny 98%, feels like (high) 29.5 °C / 85 °F, average daily high 27.3 °C / 81 °F, wet days 4.5 days, days with heavy rain 0.3 days, relative humidity 76%.
Against: average daily low 26.4 °C / 80 °F.
May · good
In its favour: feels like (high) 27.9 °C / 82 °F, precipitation 9 mm / 0.4 in, share of daylight that is sunny 97%, average daily high 26.8 °C / 80 °F, wet days 3.1 days, days with heavy rain 0.1 days, relative humidity 74%.
Against: average daily low 26 °C / 79 °F.
June · best
In its favour: feels like (high) 26.1 °C / 79 °F, average daily high 25.9 °C / 79 °F, precipitation 9 mm / 0.3 in, share of daylight that is sunny 95%, wet days 3 days, days with heavy rain 0 days, relative humidity 71%.
Against: average daily low 25 °C / 77 °F.
July · best
In its favour: feels like (high) 24.6 °C / 76 °F, average daily high 24.9 °C / 77 °F, precipitation 9 mm / 0.4 in, share of daylight that is sunny 95%, wet days 2.6 days, days with heavy rain 0 days, relative humidity 72%.
Against: average daily low 24.1 °C / 75 °F.
August · best
In its favour: feels like (high) 24.1 °C / 75 °F, average daily high 24.1 °C / 75 °F, precipitation 5 mm / 0.2 in, share of daylight that is sunny 96%, wet days 0.9 days, days with heavy rain 0 days, relative humidity 75%.
Against: average daily low 23.3 °C / 74 °F.
September · best
In its favour: feels like (high) 24.1 °C / 75 °F, average daily high 23.7 °C / 75 °F, precipitation 3 mm / 0.1 in, share of daylight that is sunny 95%, wet days 0.3 days, days with heavy rain 0 days.
Against: average daily low 23 °C / 73 °F, relative humidity 78%.
October · best
In its favour: feels like (high) 24.6 °C / 76 °F, average daily high 23.8 °C / 75 °F, precipitation 2 mm / 0.1 in, share of daylight that is sunny 93%, wet days 0.2 days, days with heavy rain 0 days.
Against: average daily low 23.1 °C / 74 °F, relative humidity 78%.
November · best
In its favour: feels like (high) 25.1 °C / 77 °F, average daily high 24.1 °C / 75 °F, precipitation 1 mm / 0 in, share of daylight that is sunny 93%, wet days 0.1 days, days with heavy rain 0 days.
Against: average daily low 23.4 °C / 74 °F, relative humidity 78%.
December · best
In its favour: feels like (high) 26.3 °C / 79 °F, average daily high 24.7 °C / 76 °F, precipitation 2 mm / 0.1 in, share of daylight that is sunny 94%, wet days 0.2 days, days with heavy rain 0 days.
Against: average daily low 24 °C / 75 °F, relative humidity 79%.
Hiking and trekking
Cool enough to climb in, dry enough to enjoy, long enough days.
- JJanuary: good
- FFebruary: neither
- MMarch: neither
- AApril: neither
- MMay: neither
- JJune: good
- JJuly: good
- AAugust: good
- SSeptember: good
- OOctober: good
- NNovember: good
- DDecember: good
- Good
- June–January
Why these months
January · good
In its favour: precipitation 2 mm / 0.1 in, wet days 0.8 days, days with heavy rain 0 days, average daily high 25.5 °C / 78 °F, share of daylight that is sunny 95%, daylight per day 12.5 h, wind (daily max) 26 km/h / 16 mph.
Against: average daily low 24.7 °C / 76 °F, feels like (high) 27.9 °C / 82 °F.
June · good
In its favour: precipitation 9 mm / 0.3 in, wet days 3 days, days with heavy rain 0 days, share of daylight that is sunny 95%, daylight per day 11.7 h, wind (daily max) 31 km/h / 20 mph.
Against: average daily high 25.9 °C / 79 °F, average daily low 25 °C / 77 °F, feels like (high) 26.1 °C / 79 °F.
July · good
In its favour: precipitation 9 mm / 0.4 in, wet days 2.6 days, days with heavy rain 0 days, average daily high 24.9 °C / 77 °F, share of daylight that is sunny 95%, daylight per day 11.7 h, feels like (high) 24.6 °C / 76 °F, wind (daily max) 33 km/h / 20 mph.
Against: average daily low 24.1 °C / 75 °F.
August · good
In its favour: precipitation 5 mm / 0.2 in, average daily high 24.1 °C / 75 °F, wet days 0.9 days, days with heavy rain 0 days, share of daylight that is sunny 96%, daylight per day 11.9 h, feels like (high) 24.1 °C / 75 °F, wind (daily max) 33 km/h / 20 mph.
Against: average daily low 23.3 °C / 74 °F.
September · good
In its favour: precipitation 3 mm / 0.1 in, average daily high 23.7 °C / 75 °F, wet days 0.3 days, days with heavy rain 0 days, share of daylight that is sunny 95%, daylight per day 12.1 h, feels like (high) 24.1 °C / 75 °F, wind (daily max) 32 km/h / 20 mph.
Against: average daily low 23 °C / 73 °F.
October · good
In its favour: precipitation 2 mm / 0.1 in, average daily high 23.8 °C / 75 °F, wet days 0.2 days, days with heavy rain 0 days, share of daylight that is sunny 93%, daylight per day 12.3 h, feels like (high) 24.6 °C / 76 °F, wind (daily max) 31 km/h / 19 mph.
Against: average daily low 23.1 °C / 74 °F.
November · good
In its favour: precipitation 1 mm / 0 in, average daily high 24.1 °C / 75 °F, wet days 0.1 days, days with heavy rain 0 days, share of daylight that is sunny 93%, daylight per day 12.5 h, feels like (high) 25.1 °C / 77 °F, wind (daily max) 30 km/h / 19 mph.
Against: average daily low 23.4 °C / 74 °F.
December · good
In its favour: precipitation 2 mm / 0.1 in, wet days 0.2 days, days with heavy rain 0 days, average daily high 24.7 °C / 76 °F, share of daylight that is sunny 94%, daylight per day 12.6 h, wind (daily max) 29 km/h / 18 mph.
Against: average daily low 24 °C / 75 °F, feels like (high) 26.3 °C / 79 °F.
An activity is listed only where it applies: skiing at ski destinations, beach and swimming at beach destinations. The nearest ski area is Estación de Esquí y Montaña de Sierra Nevada, 5131 km away.
Weather averages
Monthly averages over twenty years, 2006–2025. Highs, lows and precipitation are in the chart at the top.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feels like (high) | 27.9 °C | 29.4 °C | 30.2 °C | 29.5 °C | 27.9 °C | 26.1 °C | 24.6 °C | 24.1 °C | 24.1 °C | 24.6 °C | 25.1 °C | 26.3 °C |
| Days with heavy rain | 0 days | 0 days | 0.2 days | 0.3 days | 0.1 days | 0 days | 0 days | 0 days | 0 days | 0 days | 0 days | 0 days |
| Time rain usually falls | 6 am | 6 am | 5 am | 5 am | 5 am | 6 am | 5 am | 3 am | 5 am | 4 am | 6 am | 3 am |
| Sunshine per day | 11.9 h | 11.9 h | 11.8 h | 11.7 h | 11.4 h | 11.1 h | 11.1 h | 11.3 h | 11.4 h | 11.5 h | 11.6 h | 11.8 h |
| Relative humidity | 78% | 78% | 77% | 76% | 74% | 71% | 72% | 75% | 78% | 78% | 78% | 79% |
Air quality
Averaged over a shorter period (2022–2025) than the twenty-year averages above, and not counted towards good or best months.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Air pollution (PM2.5) 2022–2025 | 10.3 µg/m³ | 10.2 µg/m³ | 9.5 µg/m³ | 10.4 µg/m³ | 11.9 µg/m³ | 12.3 µg/m³ | 13 µg/m³ | 14.5 µg/m³ | 15.2 µg/m³ | 13.1 µg/m³ | 10.7 µg/m³ | 10.1 µg/m³ |
| Air pollution (PM2.5, daily peak) 2022–2025 | 12 µg/m³ | 12 µg/m³ | 11.1 µg/m³ | 11.8 µg/m³ | 13.5 µg/m³ | 14.4 µg/m³ | 15.2 µg/m³ | 17.1 µg/m³ | 18 µg/m³ | 15.4 µg/m³ | 12.6 µg/m³ | 11.9 µg/m³ |
- Good 15 µg/m³ or less
- Fair 15 to 25 µg/m³
- Moderate 25 to 37.5 µg/m³
- Poor 37.5 to 50 µg/m³
- Very poor 50 to 75 µg/m³
- Extremely poor over 75 µg/m³
Each figure is compared with the World Health Organization's guideline for a day's air, 15 µg/m³ or less, and with its interim targets above that. The words are ours: the WHO does not name its steps. The figures are modelled monthly averages, so single days can be well above them. The daily peak is the average of each day's highest hour, shaded on the same scale.